31980116

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1279}}^1$

素因数の和:1356

約数の個数: 48

約数和(自身を含む): 68812800

約数和(自身を除く): 36832684

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 47, 76, 94, 133, 188, 266, 329, 532, 658, 893, 1279, 1316, 1786, 2558, 3572, 5116, 6251, 8953, 12502, 17906, 24301, 25004, 35812, 48602, 60113, 97204, 120226, 170107, 240452, 340214, 420791, 680428, 841582, 1142147, 1683164, 2284294, 4568588, 7995029, 15990058, 31980116]

約数ペア:

[(1, 31980116), (2, 15990058), (4, 7995029), (7, 4568588), (14, 2284294), (19, 1683164), (28, 1142147), (38, 841582), (47, 680428), (76, 420791), (94, 340214), (133, 240452), (188, 170107), (266, 120226), (329, 97204), (532, 60113), (658, 48602), (893, 35812), (1279, 25004), (1316, 24301), (1786, 17906), (2558, 12502), (3572, 8953), (5116, 6251)]